Public bug reported: I upgraded to Kubuntu 21.04 from 20.10 two days ago. Since then, whenever I do something (type or use mouse/touchpad) I have this issue where the visuals I see seems to revert to an earlier (cached?) state for a very short while. E.g. (just observed on the previous line) I am writing wherever (console, here, ...), and after having written a word or new character, I for a short while (it seems that is mostly until the next input event, so for example often I have to wiggle the mouse), I see the state a very short while ago, e.g. before I wrote the last two letters, then gets back to actual state. This creates a very annoying jumping effect. I have also seen it in mouse driven operations, e.g. closing an image in Twitter via the X the image disappearing, coming back, then finally properly disappearing, or sorting lists by clicking sort indicators at the top reverting sorting for a short while.
I chose the plasmashell app, since ubuntu-bug more or less requires an application/package, but I just note that this issue seems to generally be present on all aspects of my desktop - all applications and desktop decorations. But it is most disruptive when I work/code using vim. I am on a Dell Precision 5530, with Intel graphics enabled. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: plasma-workspace 4:5.21.4-0ubuntu1 ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17 Uname: Linux 5.11.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Wed Jun 9 08:56:35 2021 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-osp1-20171027-1 ExecutablePath: /usr/bin/plasmashell InstallationDate: Installed on 2018-09-11 (1001 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20171027-10:57 SourcePackage: plasma-workspace UpgradeStatus: Upgraded to hirsute on 2021-06-06 (2 days ago) ** Affects: plasma-workspace (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug hirsute -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931368 Title: Visuals temporarily resets to earlier state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plasma-workspace/+bug/1931368/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
